By coming up with straws which can test for the most common date rape drugs.

‘Smart Straws’ will be able to test beverages on the spot for GBH and ketamine. And the great thing about the invention is obviously that they’re completely unintrusive. No one needs to know you’re testing your drink.

Susana Cappello, Carolina Biagorri and Victoria Roca all attend the same high school in Miami and have just won the Miami Herald’s Business Plan Challenge with their invention.

‘Rapes assisted by drugs or alcohol are all too common,’ Susana told A Plus.

‘We just want to give any gender a simple tool to protect themselves.’

In the US, one in every five women will experience some kind of sexual assault.

The students conducted a survey at Northwestern Universiy as part of the project and found that half of the respondents said they knew someone how had been drugged at a party.

(Picture: Chau Doan/LightRocket via Getty Images)

And 85% of respondents said they’d use the straws.

The teens are now in conversation with a testing kit manufacturer to try and work out how to make the straw recyclable.

And once they’ve cracked the formula, they’ll begin crowd-funding to get the business up and running.

Although the straws can only test for two drugs (there are a plethora out there), it’s a start.